The cast and crew of "The Clean House" are in Oshawa Saturday to see how they stack up against Ontario's Best.
They are up against three other plays at the Theatre Ontario Festival.
Director Holly Wenning says a judge will view all four plays then come to a decision on Sunday.
She says the way the judging works, they'll receive constructive comments that she believes will help Theatre Sarnia down the road.
Wenning says after a successful trip to the Western Ontario Drama League Festival in March, the cast and crew of 28 people are looking forward to the weekend.
